CP-IO13-4C (I/O Board Accessory for CPi-C070WR-4C)

The CP-IO13-4C is a compact I/O expansion board designed exclusively for the ComfilePi CPi-C070WR-4C. It provides a balanced combination of digital inputs, digital outputs, and dual RS-232 communication ports in a single board. With screw terminals and built-in indicator LEDs, the CP-IO13-4C allows easy wiring and clear visual status monitoring in industrial environments.

Compatibility: This product is only compatible with the CPi-C070WR-4C.

Digital Inputs

• Channels: 7
• Voltage range: 12 ~ 24 VDC
• Absolute min/max voltage range: 3.3 ~ 28 VDC
• Response time: 5 ms
• Input OFF level: < 1.8 VDC
• Input ON level: > 2.5 VDC
• Indicator LED OFF level: < 4.5 V
• Indicator LED ON level: > 5.0 V

Digital Outputs

• DC output sink (NPN) × 6
• Maximum output voltage: 30 VDC
• Response time: 10 ms
• Maximum output current: 150 mA

Communication

• RS-232C × 2

Package Includes

• CP-IO13-4C I/O board
• 26-pin ribbon cable × 1
• Mounting screws × 4

FAQ

Q: How is this different from using the GPIO pins on a standard Raspberry Pi?

A: Standard Raspberry Pi GPIO pins operate at 3.3V logic levels. That’s fine for basic digital I/O, but it stops at the logic-signal stage. In industrial environments, I/O typically works very differently. Most systems use 24V signals or dry-contact interfaces such as relays. This is necessary to interface with real-world devices—sensors, actuators, solenoid valves, motors, and other industrial equipment.

This product bridges that gap. It allows those real-world industrial devices to be safely and reliably connected to ComfilePi, translating industrial-level signals into a form the system can use. In short, it’s the difference between hobby-level GPIO and true industrial I/O designed for the real world.